Firefly quartz with petroleum inclusions - Madirobe, Madagascar
Piece composed of two quartz crystals joined together,...
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Piece composed of two quartz crystals joined together,...
Floating apple-green pyromorphite crystal from the Daoping...
Dioptase crystals of respectable size (up to 2.1 cm) for the...
Beautiful slice of natural agate from Brazil.17 x 12.6 x 0.6 cm
Beautiful slice of natural agate from Brazil.17.3 x 13.1 x 0.6 cm
Sparkly brotryoidal quartz, very slightly amethysted,...
Aesthetically crystallized native silver dendrites...
A combination of chalcopyrite, triglyph pyrite, sphalerite and...
A very dense piece, composed mainly of well-crystallized black...
Floating piece featuring a perfectly terminated translucent...
Dioptase in honorable-size crystals, brilliant, in excellent...
Landscape stone from China, rectangular in shape, in the...
Landscape stone from China, rectangular in shape, in the...
Group of bluish-gray, rhombic barite crystals of various...
Plate composed of chalcedony in small stalactites surrounded...
Beige baytine crested pompom, rather shiny, not 100% perfect...
Dark-red vanadinite crystals of superb brilliance, with gemmy...
Native copper with an atypical skeletal structure, due to...
Small “feather” of native copper with an atypical skeletal...
Cube of purple fluorite, with distinct internal edging, on a...
Native copper with an atypical skeletal structure, due to...
Native copper with an atypical skeletal structure, due to...
Brilliant dark-red vanadinite with atypical, jagged...
Very bright pyrite on matrix. Sample from the Arignac gypsum...
Brilliant black dravite crystals accompanied by a few...
Large piece of white barite pompons from the Malines mine in...
Half-geode of white mamelonned chalcedony, from the Charroux...
An architecturally complex piece of brilliant white quartz,...
Set of smoky, fairly bright quartz of fine quality.3.7 x 2.9 x...
Group of smoky and biterminated quartz from a small Australian...
Group of smoky and biterminated quartz from a small Australian...
Small, extremely bright and well-formed green demantoid...